ir: Don't crash with built-in unexposed types from libclang.

This fixes #2325. The issue is that `__bf16` is not exposed at all by libclang, which causes us to crash. It's a bit of a shame libclang doesn't expose it but there's no rust equivalent I think, so this should be ok for now. Unfortunately no test because the header crashes older clang versions.
rust-lang · Nov 9, 2022 · c03b376 · c03b376
1 parent 0631a27
commit c03b376
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Showing 2 changed files with 5 additions and 6 deletions.
diff --git a/bindgen/ir/ty.rs b/bindgen/ir/ty.rs
@@ -1145,8 +1145,7 @@ impl Type {
                         location,
                         None,
                         ctx,
-                    )
-                    .expect("Not able to resolve vector element?");
+                    )?;
                     TypeKind::Vector(inner, ty.num_elements().unwrap())
                 }
                 CXType_ConstantArray => {

diff --git a/bindgen/ir/var.rs b/bindgen/ir/var.rs
@@ -293,11 +293,11 @@ impl ClangSubItemParser for Var {
                 let ty = match Item::from_ty(&ty, cursor, None, ctx) {
                     Ok(ty) => ty,
                     Err(e) => {
-                        assert_eq!(
-                            ty.kind(),
-                            CXType_Auto,
+                        assert!(
+                            matches!(ty.kind(), CXType_Auto | CXType_Unexposed),
                             "Couldn't resolve constant type, and it \
-                             wasn't an nondeductible auto type!"
+                             wasn't an nondeductible auto type or unexposed \
+                             type!"
                         );
                         return Err(e);
                     }